The sequence of energy conversions is; chemical energy ---> electrical energy ----> heat and light energy
What is energy transformation?According to thee first law of thermodynamics, energy can neither be created nor destroyed but can be converted from one form to another. This is also called the principle of conservation of energy.
When the switch is turned on, chemical energy of the battery is converted to electrical energy is produced which is then converted to heat and light energy in the light bulb.'
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Answer: Thermal and Light
Explanation: When the switch is ON, the light bulb turns on, creating light. After a minute, the bulb will start to warm up, and so will the battery.
Yellow light (600 nm) passes
through a diffraction grating. Its first
order (m = 1) maximum occurs at
an angle of 21. 2°. What is the slit
separation d?
[?] x 10-6 m
HELP PLSS!!!
This question involves the concept of the grating equation.
The slit separation is "1.66 x 10⁻⁶ m".
Grating EquationThe grating equation is used to derive a relationship between the wavelength of the light falling on the grating and the slit separation for a given order and angle of diffraction. Mathematically, the grating equation is written as follows:
[tex]m\lambda = dSin\theta\\\\d=\frac{m\lambda}{Sin\theta}[/tex]
where,
d = slit separation = ?m = order = 1λ = wavelength of the yellow light = 600 nm = 6 x 10⁻⁷ mθ = angle of diffraction = 21.2°Therefore, using the given values in the formula, we get:
[tex]d=\frac{(1)(6\ x\ 10^{-7}\ m)}{Sin(21.2^o)}\\\\[/tex]
d = 1.66 x 10⁻⁶ m
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Answer:
1.66
Explanation:
4.
Sound waves and ultraviolet light waves both share the property of being able
a. Move through empty space
c. Carry energy
b. Travel at 300,000 m/s
d. Proprogate through rock
- - - - - - - - - - - - - - - - - - - - - - -
Hope this helped :)
~pinetree
PLEASE HELP ME WITH THIS ONE QUESTION
An engine is 34% efficient. What ratio of work to heat input is possible?
Answer:
it would be 19/56 i believe !
Explanation:
Answered it correct on a test :)
If two objects of the different masses are pushed with the same force; which will travel faster?
Friends I need the answer for this ?
Answer:
[tex]\small\color{aqua}\tt{{a}}[/tex]
hope it's help
On a warm summer day when the relative humidity is high, it may seem even warmer than the actual temperature. Why do we feel so uncomfortable on these muggy days?
Answer:
Condensing
Explanation:
Water density in the air is too high for condensation to occur and so you feel warm, sweaty, and sticky due to the added moisture on your body.
A boy pushes a 54kg cart with a force of 81N. What is the cart's acceleration?
Explanation:
maturity also get disorganised
Dr. Cronbach wants to be sure that his assessment of neuroticism measures the same way each time he uses it. Which aspect of assessment is Dr. Cronbach primarily concerned with?
The aspect of assessment that Dr. Cronbach is primarily concerned with is the internal consistency.
Reliability assessmentA reliability assessment is a tool that is used to evaluate the consistent performance of an individual or an instrument.
When this assessment is carried out in such a way that the instrument gives the same result each time it is used, the internal consistency is being considered.
Therefore, the aspect of assessment that Dr. Cronbach is primarily concerned with is the internal consistency.
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A star is moving away from an observer. Toward which end of the spectrum does its visible light shift?.
Answer:
Redshift, or lower power
Explanation:
doppler effect
waves get stretched when you are moving away from something, and squished when you are moving towards it. Imagine you have a long, bent wire. if you stretch out the wire, the wavelength becomes longer. This also applies to sound.
[tex]\huge\pink{\boxed{{\colorbox{black}{PLS HELP}}}}[/tex]
Suppose that 100 g of metal gained 110 cal of heat when the temperature is increased form 60°C to 70°C. What is the specific heat of metal?
q=mcΔt
110=100.c.(70-60)
c=0.11
Answer:
110 cal kg⁻¹°C⁻¹
Explanation:
Formula to find the specific heat capacity is :
Q = m c Θ
Here,
Q = heat energy
m = mass
c = specific heat capacity
Θ = change in temperature
Now let us find the specific heat capacity now.
Q = m c Θ
110cal = 1kg × c × (70 - 60 ) °C
110cal= 0.1kg × c × 10°C
110 = 1 c
Divide both sides by 1.
c = 110 cal kg⁻¹°C⁻¹
At what point is the speed at a maximum? .
A. Just before the skater reaches the very bottom
B. At the exact bottom
C. A little bit after reaching the bottom
Answer:
B. At the exact bottom
Explanation:
This is because his acceleration is at its max, which means his speed is at a max. HOPE THIS HELPS!
Answer:
B, At the exact bottom
Explanation:
i got it right
An adventurer pulls a loaded sled with a mass of 56 kg along a horizontal meadow at a constant speed. The adventurer applies 260 N of force the rope and the angle of the rope between the sled and the adventurer is 55°. What is the coefficient of friction between the sled and the ground?
Answer:his tension is 262 N
Explanation:1) Call T the tension of the rope2) Split T into its horizontal and vertical components.3) Horizontal component of the tension, Tx = T cos(55°)4) Vertical component of the tension, Ty = T sin (55°)5) Force equilibrium in the vertical direcction:∑Fy = 0Ty + normal force - weight of the sled = 0Call N the normal forceTy + N - 56 kg * 9.8 m/s^2Ty + N = 56 kg * 9.8 m/s^2Ty + N = 548.8NT sin(55) + N = 548.8N6) Force equilibrium in the horizontal directionconstant velocity => ∑Fx = 0Tx - Fx = 0Tcos(55) - Fx = 07) Fx is the friction force.The friction force and the normal force are related by the kinetic friction coefficient.Call μk the friction coefficientFx = μk N=> Tcos(55) - μk N = 0Tcos(55) - 0.45N = 08) Solve the system of two equations:Eq (1) T sin(55) + N = 548.8Eq (2) T cos(55) - 0.45N = 0Eq(1) 0.819T + N = 548.8Eq(2) 0.574T - 0.45N = 0The solution of the system is T = 262.01 N and N = 334.21 NThen T ≈ 262N
someone please answer this, ill give you brainliest and your getting 100 points.
Answer:
Option B is correct
Explanation:
A is denoted to lithosphere followed by B -asthenosphere .Which is covered by lava of E(Mantal section)
What is the heat source for convection currents in layer E?
O A
O B✓
When a volcano (present on lithosphere) erruputs, the molten material which goes down (Asthenosphere) ,results in the heating effects in the mantle .O C
O D
An electrostatic force of 9.0 N ??
[tex]\longrightarrow \sf D) 9.0 \times 10^6 N/C [/tex]
Solution:-Given -
force,F = 9.0 NCharge,q = +1.0[tex]\mu[/tex]Force,F on any charge q in electric field,E is given by -
[tex]\green{ \underline { \boxed{ \sf{F = qE}}}}[/tex]
[tex]\therefore \sf E = \dfrac{F}{q} [/tex]
Putting Values -
[tex]\begin{gathered}\\\implies\quad \sf \dfrac{9}{1 \times 10^{-6}} \quad(1\mu = 10^{-6}) \\\end{gathered} [/tex]
[tex]\begin{gathered}\\\implies\quad \sf 9 \times 10^{6} N/C \\\end{gathered} [/tex]
What is the solubility of NaCI at 20 degrees?
Answer:
The solubility of sodium chloride in water is 36.0 g per 100 g water at 20°C. The temperature must be specified because solubility varies with temperature. Or 36.0 g per 100 g
Explanation:
witch two conditions would result in the weakness electric force between objects
Answer: the greater the electric force. distance between the charges.
Explanation:
The greater the charge, the greater the electric force. The second factor is the distance between the charges.
what do we need to know in order to make motion safe for all?
Answer:
motion changes with time of the position or orientation of a body. Motion that changes the orientation of a body is called rotation.
Explanation:
What is the change in the momentum of a 1,600 kg car if its velocity goes
from 20 m/s to 0 m/s?
Answer:
1) 22,240kg m/s
2) 9.26
Explanation:
1) Mass × Velocity
2) 22,240 ÷ 2400
6. What is the GPE of a 500g box of chocolates 2 m above the ground?
How is thermal equilibrium reached? Question 3 options: When both objects have the same temperature When objects have the same mass When objects are both in the same state of matter (solid, liquid, or gas) When objects have different temperatures.
In the thermal equilibrium, the change in temperature is said to be zero in between the bodies. Thermal equilibrium is reached when both objects have the same temperature.
What is thermal equilibrium?Thermal equilibrium is easily explained by the zeroth law of thermodynamics. If any two-body is at thermal equilibrium there is no change in the temperature of the body.
According to zeroth law if body A is in thermal equilibrium with body B and body B is in thermal equilibrium with C . So body A and C are also in thermal equilibrium.
In the thermal equilibrium, the net heat transfer is said to be zero in between the bodies.
Hence option A IS RIGHT. Thermal equilibrium is reached when both objects have the same temperature
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someone please answer this, ill give you brainliest and your earning 50 points.
All of the following are non-renewable resources except
O natural gas
O oil
O minerals
O water ✓
Water is a renewable source because evaporation and condensation takes place everytime on our planetAnswer:
water
Explanation:
There are two types of resources
RenewableNon renewableThe resources which cant be created back again are called nonrenewable.
The resources which can be created back are called renewable
Billy pushes a supermarket cart with a constant force F. Every time he adds groceries to the cart, the weight of the cart increases. Billy adds groceries until the cart is filled. How do the groceries affect the carts acceleration if the force billy used to push the filled cart is the same force he used to push the empty cart?
Answer:
The groceries will decrease the cart's acceleration.
Explanation:
more force is required to push the full cart than the empty cart.
If we add 50 Joules of thermal energy to a heat engine, and that heat engine does 30 Joules of work, how much thermal energy is left over?
20 Joules
10
None
All of it
Answer:
The correct answer should be
A. 20 Joules
Explanation:
I'm taking the K12 Unit Test: Energy - Part 1 right now
A tennis ball has 10 J of energy when it is 1 m above the floor.
Name the store associated with this
energy.
The store associated with the energy when a ball has 10 J of energy when it is 1 m above the floor is gravitational potential energy
What is gravitational potential energy?
Gravitational potential energy is the energy of a body by virtue of its position in the gravitational field.
From the question, If a tennis ball has 10 J of energy when it is 1 m above the floor, first, a work of 10 J was done against gravity to lift the tennis from the floor to a height of 1 m. At the height of 1 m, the work of 10 J is converted to the gravitational potential energy of the tennis ball which is stored in the ball.
Hence, The energy associated when a tennis ball has 10 J of energy and it is 1 m above the floor is gravitational potential energy.
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A 26.5 kg crate is pushed with a force of 1,893 N, moving the crate a distance of 13.0 m. 579 W of power was used. For how much time was the force applied
Explanation:
[tex]t = \frac{f \times d}{p} [/tex]
t = ?
f = 1893N
d = 13m
P = 579W
t = { 1893×13}/(579)
t = 42.5secs
A capacitor has a capacitance of 0. 40 µF at a voltage of 9. 0 V. What is the charge on each plate of the capacitor? µC.
The capacitor is a device that can store electrical energy. It is a two-conductor configuration. The charge on each plate of the capacitor will be 3.6 µC.
What is a capacitor?A capacitor is a device that can store electrical energy. It is a two-conductor configuration separated by an insulating medium that carries charges of equal size and opposite sign.
An electric insulator or vacuum, such as glass, paper, air, or a semi-conductor termed a dielectric, can be used as the non-conductive zone.
The given data in the problem is;
C is the capicitence of capicitor= 0. 40 µF
V is the voltage = 9. 0 V
Q is a charge on each plate of the capacitor=?µC.
The formula for the capacitor is given as;
[tex]\rm Q=CV \\\\ \rm Q=0. 40 \times 9. 0 \\\\ \rm Q=3.6 \ \mu C.[/tex]
Hence the charge on each plate of the capacitor will be 3.6 µC.
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Answer:
3.6
Explanation:
4. Which of the following is NOT a running/jogging drill?
A. Rope climb
B. Wind Sprints
C. Zigzag drill
D. Agility latter drill
5. A zigzag drill is done by alternately stepping one foot in front of and behind the other foot.
True or False
6. Select the correct answer.
Speed and agility work together for athletes to have an advantage over the opponents in only a few sports.
True or False
Answer:
4. A. rope climb
5. True
6. True
Explanation:
hope it's help
6) If Bam was hit by the hand with a force of 1200N. If he has a mass of 81kg, what acceleration did
Bam feel?
Answer:
14.81 m/s^2
Explanation:
f=m×a
1200=81×a
a=1200/81
a=14.81
Electroconvulsive therapy has been most successful in the treatment of:.
Given what we know, we can confirm that electroconvulsive therapy has been most successful in the treatment of major depression.
What is Electroconvulsive therapy?This is a relatively new procedure. It involves the intentional triggering of brief seizures in the brain. This is done while the patient is under the effects of anesthesia and is therefore painless. These seizures cause a dynamic shift in the brain chemistry of the patients, leading to greatly reduced symptoms in over 80% of patients.
Therefore, we can confirm that electroconvulsive therapy has been most successful in the treatment of major depression.
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good morning! can someone please answer this, ill give you brainliest and your earning 50 points.
Answer:
With the exception of natural gas fossil fuel energies have seen an overall decrease since year 2000.
Explanation:
Just observe the graph
The Fossil fuels include-Petroleum ,coal and natural gases.
The graph of these goes fastly up during 20th century but ,then it stabled at the peak then has not shown any solid increase .Observe other energy sources graph ,nuclear energy etc have shown quite speedy increase .Option C is correct
Which of the following can be concluded from the graph
Use of coal for energy consumption has been steadily increase since the year 2000.Fossil fuels are not being used for energy as much as other alternative energy sourcesWith the exception of natural gas, fossil fuel energy sources have seen an overall decrease in use since the year 2000 ✓⤿Technology has been developed at it's highest tip since the beginning of 2000's , resulting in the foundation of various projects to reduce the use of fossil fuels
Nuclear energy is the third most used energy source